'Yellowstone and Voice' were a duo formed in 1972 in London. Their two main musical hits were "Philosopher" and "Grandmother Says". Peter Papini (Yellowstone) and Steve Voice were singer songwriters who also coined the famous Kelly Marie hit "Feels like I'm in love". Both became successful writer/producers in their own rights. Steve Voice had solo hits including "On the Shelf" and formed the band Revolver. Their one and only self titled album is now highly regarded and collectable.